Subtraction of 2 Numbers: C

In this video tutorial you can learn the procedure followed in C programming to subtract two numbers.

Related Read:

 
#include < stdio.h >

int main()
{
    int a, b, c;

    printf("Enter value of a and b\n");
    scanf("%d%d", &a, &b);

    c = a - b;
    
    printf("Subtraction of %d and %d is %d\n", a, b, c);

    return 0;
}

Output:
Enter value of a and b
30
20
Subtraction of 30 and 20 is 10

You can write same program without using third variable to calculate subtraction of 2 numbers, as below:

 
#include < stdio.h >

int main()
{
    int a, b;

    printf("Enter value of a and b\n");
    scanf("%d%d", &a, &b);

    printf("Subtraction of %d and %d is %d\n", a, b, (a+b));

    return 0;
}

Output:
Enter value of a and b
30
20
Subtraction of 30 and 20 is 10

Note: Instead of int you can take float variables too. That would help in taking both integer as well as real values from the user as input.

Scanf(): For user input

In above c program we are asking user to enter the values for variable a and b. You can know more about scanf() method/function in this video tutorial: Using Scanf in C Program

Subtraction of Two Numbers: C Programming

This video was produced as building block for our simple calculator application.

For full C programming language free video tutorial list visit:C Programming: Beginner To Advance To Expert